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For the Inventor, By the Inventor

Williamsport, PA, United States of America

Shop Vac Corporation


USPTO Granted Patents = 411

% Expired Patents = 5.6



Trademarks = 23

Forward Citations = 5,888

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62 inventors (with patents filed for the assignee):

goldMedal Robert C Berfield (137 out of 146 patents)

silverMedal John Griffin (130 out of 156 patents)

bronzeMedal Robert L Crevling, Jr (105 out of 108 patents)

4.  Craig A Seasholtz (65 out of 68 patents)

5.  Kevin D Fry (40 out of 43 patents)

6.  Jason S Gottschall (37 out of 38 patents)

7.  Melvin E Wolfe, Jr (33 out of 35 patents)

8.  Neil N Norell (26 out of 26 patents)

9.  Ronald F Meland (26 out of 27 patents)

10.  Mark E Baer (25 out of 29 patents)

11.  Li H Liu (24 out of 24 patents)

12.  Jonathan Miller (18 out of 37 patents)

13.  David M Martinez (18 out of 27 patents)

14.  Randy L Buss (15 out of 15 patents)

15.  James M Robitaille (14 out of 17 patents)


Core Competencies:
Vacuum Cleaner Assembly
Filter System
In-Vehicle Vacuum
Nozzle Attachment
Vacuum Tool
Modular Vacuum
Wet/Dry Vacuum
Locking Mechanism
Portable Vacuum
Airflow Indicator
Noise Reduction
Vacuum Bag

411 patents:

1. 11718275 - Grill and flapper valve for a vacuum cleaner assembly (2023-08-08),
2. 11708055 - Vacuum cleaner assembly (2023-07-25),
3. 11654868 - Vacuum cleaner to be installed in a vehicle (2023-05-23),
4. 11638508 - Locking assembly for in-vehicle vacuum cleaner (2023-05-02),
5. 11596284 - Vacuum tool with multiple use blades (2023-03-07),
6. 11510536 - Vacuum filter (2022-11-29),
7. 11490773 - Filter system for a vacuum cleaner (2022-11-08),
8. 11359643 - Fan having housing formed by connectable pieces and including air guide ribs and an internal ramp (2022-06-14),
9. 11304579 - Vacuum filter having annular catch (2022-04-19),
10. 11253120 - In-vehicle vacuum cleaner (2022-02-22),
11. 11109726 - Modular vacuum cleaner (2021-09-07),
12. 11096537 - Vacuum bag (2021-08-24),
13. 11077986 - Corner support assembly (2021-08-03),
14. 11071425 - Wide-area vacuum nozzle (2021-07-27),
15. 11013380 - Wet/dry vacuum bag (2021-05-25),
Company Overview
Shop Vac Corporation, headquartered in Williamsport, PA, specializes in the development and manufacturing of vacuum cleaner technology. The company is renowned for its innovative solutions in wet/dry vacuum systems, offering a range of products that include modular vacuums, in-vehicle vacuums, and various nozzle attachments. Their focus on advanced filter systems and locking mechanisms enhances the efficiency and versatility of their vacuum cleaners, catering to both consumer and industrial markets.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 6 2026

Shop Vac Corporation USPTO Patent Assignee Logo
411 Patents

#1 in Williamsport, PA

#50 in Pennsylvania

#1,141 in US

#2,277 in the World

Williamsport, PA (US)
Williamsport, PA, United States of America

Shop Vac Corporation

Forward Citations = 5,888

62 inventors:

goldMedal Robert C Berfield (137 out of 146 patents)

silverMedal John Griffin (130 out of 156 patents)

bronzeMedal Robert L Crevling, Jr (105 out of 108 patents)

4.  Craig A Seasholtz (65 out of 68 patents)

5.  Kevin D Fry (40 out of 43 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Shop Vac Corporation. Retrieved from https://idiyas.com/company/shop-vac

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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